Highlighter for ChatGPT & Claude by dematrix
Highlight and save lines in your ChatGPT and Claude chats. Toggle from the toolbar; highlights restore when you return.
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About this extension
This application was vibe coded to solve a very personal and specific problem which is not able to find the important thing that I wanted to remember after returning to a ChatGPT/Claude session :)
It helps you highlight specific sentences (paragraphs and blocks will be added later) and stores them in the local storage which can be retrieve later.
It helps you highlight specific sentences (paragraphs and blocks will be added later) and stores them in the local storage which can be retrieve later.
Highlight what is important. Remember them back.
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Permissions and data
Required permissions:
- Access your data for chatgpt.com
- Access your data for chat.openai.com
- Access your data for claude.ai
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.0.0
- Size
- 17.73 KB
- Last updated
- 4 days ago (Jul 19, 2026)
- Related Categories
- License
- Apache License 2.0
- Version History
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